eu.dnetlib.enabling.tools.blackboard

Class BlackboardNotificationHandler<T extends BlackboardHandler>

java.lang.Object

eu.dnetlib.enabling.tools.blackboard.AbstractBlackboardNotificationHandler<T>

eu.dnetlib.enabling.tools.blackboard.BlackboardNotificationHandler<T>

Type Parameters:

T - blackboard handler (client or server)

All Implemented Interfaces:

BlackboardJobRegistry, eu.dnetlib.enabling.tools.blackboard.NotificationHandler, eu.dnetlib.enabling.tools.Enableable

Direct Known Subclasses:

DeletingBlackboardNotificationHandler

public class BlackboardNotificationHandler<T extends BlackboardHandler>
extends AbstractBlackboardNotificationHandler<T>
implements BlackboardJobRegistry

This notification handler dispatches incoming notifications to registered blackboard message listeners. Usually used by blackboard notification clients, since they are usually interested only in the messages they have sent and not in messages sent by other BB clients. Moreover it's an useful hook for dispatching orchestration.

Author:

marko

Constructor Summary

Constructors

Constructor and Description
BlackboardNotificationHandler()

Method Summary

Modifier and Type	Method and Description
Map<String,BlackboardJobListener>	getListeners()
protected void	processJob(BlackboardJob job) Subclassess override this to process incoming blackboard jobs.
void	registerJobListener(BlackboardJob job, BlackboardJobListener listener) Registers a new job listener.
void	setListeners(Map<String,BlackboardJobListener> listeners)

Methods inherited from class eu.dnetlib.enabling.tools.blackboard.AbstractBlackboardNotificationHandler

getBlackboardHandler, isEnabled, notified, setBlackboardHandler, setEnabled

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BlackboardNotificationHandler

public BlackboardNotificationHandler()

Method Detail

processJob

protected void processJob(BlackboardJob job)

Subclassess override this to process incoming blackboard jobs.

Specified by:

processJob in class AbstractBlackboardNotificationHandler<T extends BlackboardHandler>

Parameters:

job - blackboard job

See Also:

AbstractBlackboardNotificationHandler.processJob(eu.dnetlib.enabling.tools.blackboard.BlackboardJob)

registerJobListener

public void registerJobListener(BlackboardJob job,
                                BlackboardJobListener listener)

Registers a new job listener. It will be notified when the job changes state. The listener will be unregistered when the job arrives to a final state (DONE, or FAILED).

Specified by:

registerJobListener in interface BlackboardJobRegistry

Parameters:

job - job

listener - job listener

See Also:

BlackboardJobRegistry.registerJobListener(eu.dnetlib.enabling.tools.blackboard.BlackboardJob, eu.dnetlib.enabling.tools.blackboard.BlackboardJobListener)

getListeners

public Map<String,BlackboardJobListener> getListeners()

setListeners

public void setListeners(Map<String,BlackboardJobListener> listeners)